Answer:
it will have 6 valence electrons
it will gain electrons
charge will be 2-
Answer:
D.
Explanation:
I'm not 100 percent but I went to three different website articles that said so
Hope this helps have a great day!
Answer:
6
Explanation:you find neutrons by subtracting the mass number from the proton for this example lithium's number of protons is 3 and mass number 9 so 9-3=6
The mass percent of a NaCl solution prepared by mixing 47.0 g NaCl with 125.0 Ml of pure water is 27.3%
calculation
% mass =mass of solute / mass of the solvent x 100
mass of the solute(NaCl )= 47 g
mass of the solvent = mass of pure water + mass of NaCl
convert 125 Ml of pure water to grams
that is 1 ml = 1 g therefore 125ml = 125 g
mass of solvent is therefore= 125g+ 47=172g
therefore the % mass = 47/172 x100 = 27.3 %